function [t,x]=VecG1(x)
	% determina vectorul Gauss asociat
	% unui vector x,caruia ii anuleaza
	% componentele x[2:n]
	x=x(:);
	n=length(x);
	t=zeros(n,1);
	t(2:n)=x(2:n)/x(1);
	x(2:n)=0;
endfunction